Novel secondary water supply water tank

The utility model relates to the technical field of secondary water supply, in particular to a novel secondary water supply water tank which comprises a water tank body, a liquid level device arranged on the inner wall of the water tank body, a containing box arranged on the top of the water tank body, an empty cylinder arranged in the containing box, a spray pipe arranged on the empty cylinder, an intercepting plate arranged on the spray pipe, a push plate arranged in the empty cylinder and a supporting plate arranged on the side edge of the water tank body. A hydraulic push rod is arranged on the supporting plate and connected with the push plate, a placing plate is arranged on the water tank, a material storage box is arranged on the placing plate, a chemical adding pipe is arranged on the material storage box, a material pipe is connected to the top of the material storage box, and the other end of the material pipe is communicated with the empty cylinder. The hydraulic push rod and the push plate are arr